Pennzoil Platinum Full Synthetic Motor Oil (SN) 5W-20, 1 Quart - Pack of 1 Full synthetic oil cleans out engine sludge better than conventional and synthetic blend oils Superior Active Cleansing Agents Better for severe driving conditions than conventional and synthetic blend oils Helps keep engines cleaner with better wear protection Exceeds the most stringent car manufacturer requirements for cleanliness and protection Better for severe driving conditions than conventional or synthetic blend oils Exceeds the most stringent car manufacturers requirements for cleanliness and protections - Including GM dexos1 With superior Active Cleansing Agents